1 /*******************************************************************************
3 * Module Name: dmresrc.c - Resource Descriptor disassembly
6 ******************************************************************************/
8 /******************************************************************************
12 * Some or all of this work - Copyright (c) 1999 - 2004, Intel Corp.
13 * All rights reserved.
17 * 2.1. This is your license from Intel Corp. under its intellectual property
18 * rights. You may have additional license terms from the party that provided
19 * you this software, covering your right to use that party's intellectual
22 * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
23 * copy of the source code appearing in this file ("Covered Code") an
24 * irrevocable, perpetual, worldwide license under Intel's copyrights in the
25 * base code distributed originally by Intel ("Original Intel Code") to copy,
26 * make derivatives, distribute, use and display any portion of the Covered
27 * Code in any form, with the right to sublicense such rights; and
29 * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
30 * license (with the right to sublicense), under only those claims of Intel
31 * patents that are infringed by the Original Intel Code, to make, use, sell,
32 * offer to sell, and import the Covered Code and derivative works thereof
33 * solely to the minimum extent necessary to exercise the above copyright
34 * license, and in no event shall the patent license extend to any additions
35 * to or modifications of the Original Intel Code. No other license or right
36 * is granted directly or by implication, estoppel or otherwise;
38 * The above copyright and patent license is granted only if the following
43 * 3.1. Redistribution of Source with Rights to Further Distribute Source.
44 * Redistribution of source code of any substantial portion of the Covered
45 * Code or modification with rights to further distribute source must include
46 * the above Copyright Notice, the above License, this list of Conditions,
47 * and the following Disclaimer and Export Compliance provision. In addition,
48 * Licensee must cause all Covered Code to which Licensee contributes to
49 * contain a file documenting the changes Licensee made to create that Covered
50 * Code and the date of any change. Licensee must include in that file the
51 * documentation of any changes made by any predecessor Licensee. Licensee
52 * must include a prominent statement that the modification is derived,
53 * directly or indirectly, from Original Intel Code.
55 * 3.2. Redistribution of Source with no Rights to Further Distribute Source.
56 * Redistribution of source code of any substantial portion of the Covered
57 * Code or modification without rights to further distribute source must
58 * include the following Disclaimer and Export Compliance provision in the
59 * documentation and/or other materials provided with distribution. In
60 * addition, Licensee may not authorize further sublicense of source of any
61 * portion of the Covered Code, and must include terms to the effect that the
62 * license from Licensee to its licensee is limited to the intellectual
63 * property embodied in the software Licensee provides to its licensee, and
64 * not to intellectual property embodied in modifications its licensee may
67 * 3.3. Redistribution of Executable. Redistribution in executable form of any
68 * substantial portion of the Covered Code or modification must reproduce the
69 * above Copyright Notice, and the following Disclaimer and Export Compliance
70 * provision in the documentation and/or other materials provided with the
73 * 3.4. Intel retains all right, title, and interest in and to the Original
76 * 3.5. Neither the name Intel nor any other trademark owned or controlled by
77 * Intel shall be used in advertising or otherwise to promote the sale, use or
78 * other dealings in products derived from or relating to the Covered Code
79 * without prior written authorization from Intel.
81 * 4. Disclaimer and Export Compliance
83 * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
84 * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
85 * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE,
86 * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY
87 * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY
88 * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
91 * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
92 * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
93 * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
94 * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
95 * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
96 * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS
97 * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
100 * 4.3. Licensee shall not export, either directly or indirectly, any of this
101 * software or system incorporating such software without first obtaining any
102 * required license or other approval from the U. S. Department of Commerce or
103 * any other agency or department of the United States Government. In the
104 * event Licensee exports any such software from the United States or
105 * re-exports any such software from a foreign destination, Licensee shall
106 * ensure that the distribution and export/re-export of the software is in
107 * compliance with all laws, regulations, orders, or other restrictions of the
108 * U.S. Export Administration Regulations. Licensee agrees that neither it nor
109 * any of its subsidiaries will export/re-export any technical data, process,
110 * software, or service, directly or indirectly, to any country for which the
111 * United States government or any agency thereof requires an export license,
112 * other governmental approval, or letter of assurance, without first obtaining
113 * such license, approval or letter.
115 *****************************************************************************/
120 #include "acdisasm.h"
122 #ifdef ACPI_DISASSEMBLER
124 #define _COMPONENT ACPI_CA_DEBUGGER
125 ACPI_MODULE_NAME ("dbresrc")
128 /*******************************************************************************
130 * FUNCTION: AcpiDmBitList
132 * PARAMETERS: Mask - 16-bit value corresponding to 16 interrupt
137 * DESCRIPTION: Dump a bit mask as a list of individual interrupt/DMA levels.
139 ******************************************************************************/
146 BOOLEAN Previous = FALSE;
149 /* Open the initializer list */
151 AcpiOsPrintf (") {");
153 /* Examine each bit */
155 for (i = 0; i < 16; i++)
157 /* Only interested in bits that are set to 1 */
166 AcpiOsPrintf ("%d", i);
174 AcpiOsPrintf ("}\n");
178 /*******************************************************************************
180 * FUNCTION: AcpiDmResourceDescriptor
182 * PARAMETERS: Info - Curent parse tree walk info
183 * ByteData - Pointer to the byte list data
184 * ByteCount - Length of the byte list
188 * DESCRIPTION: Dump the contents of one ResourceTemplate descriptor.
190 ******************************************************************************/
193 AcpiDmResourceDescriptor (
194 ACPI_OP_WALK_INFO *Info,
198 ACPI_NATIVE_UINT CurrentByteOffset;
202 void *DescriptorBody;
204 BOOLEAN DependentFns = FALSE;
209 for (CurrentByteOffset = 0; CurrentByteOffset < ByteCount; )
211 CurrentByte = ByteData[CurrentByteOffset];
212 DescriptorBody = &ByteData[CurrentByteOffset];
214 if (CurrentByte & ACPI_RDESC_TYPE_LARGE)
216 DescriptorId = CurrentByte;
217 Length = (* (ACPI_CAST_PTR (UINT16, &ByteData[CurrentByteOffset + 1])));
218 CurrentByteOffset += 3;
222 DescriptorId = (UINT8) (CurrentByte & 0xF8);
223 Length = (ByteData[CurrentByteOffset] & 0x7);
224 CurrentByteOffset += 1;
227 CurrentByteOffset += (ACPI_NATIVE_UINT) Length;
229 /* Determine type of resource */
231 switch (DescriptorId)
234 * "Small" type descriptors
236 case ACPI_RDESC_TYPE_IRQ_FORMAT:
238 AcpiDmIrqDescriptor (DescriptorBody, Length, Level);
242 case ACPI_RDESC_TYPE_DMA_FORMAT:
244 AcpiDmDmaDescriptor (DescriptorBody, Length, Level);
248 case ACPI_RDESC_TYPE_START_DEPENDENT:
250 /* Finish a previous StartDependentFns */
255 AcpiDmIndent (Level);
256 AcpiOsPrintf ("}\n");
259 AcpiDmStartDependentDescriptor (DescriptorBody, Length, Level);
265 case ACPI_RDESC_TYPE_END_DEPENDENT:
268 DependentFns = FALSE;
269 AcpiDmEndDependentDescriptor (DescriptorBody, Length, Level);
273 case ACPI_RDESC_TYPE_IO_PORT:
275 AcpiDmIoDescriptor (DescriptorBody, Length, Level);
279 case ACPI_RDESC_TYPE_FIXED_IO_PORT:
281 AcpiDmFixedIoDescriptor (DescriptorBody, Length, Level);
285 case ACPI_RDESC_TYPE_SMALL_VENDOR:
287 AcpiDmVendorSmallDescriptor (DescriptorBody, Length, Level);
291 case ACPI_RDESC_TYPE_END_TAG:
296 * Close an open StartDependentDescriptor. This indicates a missing
297 * EndDependentDescriptor.
300 DependentFns = FALSE;
301 AcpiDmIndent (Level);
302 AcpiOsPrintf ("}\n");
303 AcpiDmIndent (Level);
305 AcpiOsPrintf ("/*** Missing EndDependentFunctions descriptor */");
308 * We could fix the problem, but then the ASL would not match the AML
309 * So, we don't do this:
310 * AcpiDmEndDependentDescriptor (DescriptorBody, Length, Level);
317 * "Large" type descriptors
319 case ACPI_RDESC_TYPE_MEMORY_24:
321 AcpiDmMemory24Descriptor (DescriptorBody, Length, Level);
325 case ACPI_RDESC_TYPE_GENERAL_REGISTER:
327 AcpiDmGenericRegisterDescriptor (DescriptorBody, Length, Level);
331 case ACPI_RDESC_TYPE_LARGE_VENDOR:
333 AcpiDmVendorLargeDescriptor (DescriptorBody, Length, Level);
337 case ACPI_RDESC_TYPE_MEMORY_32:
339 AcpiDmMemory32Descriptor (DescriptorBody, Length, Level);
343 case ACPI_RDESC_TYPE_FIXED_MEMORY_32:
345 AcpiDmFixedMem32Descriptor (DescriptorBody, Length, Level);
349 case ACPI_RDESC_TYPE_DWORD_ADDRESS_SPACE:
351 AcpiDmDwordDescriptor (DescriptorBody, Length, Level);
355 case ACPI_RDESC_TYPE_WORD_ADDRESS_SPACE:
357 AcpiDmWordDescriptor (DescriptorBody, Length, Level);
361 case ACPI_RDESC_TYPE_EXTENDED_XRUPT:
363 AcpiDmInterruptDescriptor (DescriptorBody, Length, Level);
367 case ACPI_RDESC_TYPE_QWORD_ADDRESS_SPACE:
369 AcpiDmQwordDescriptor (DescriptorBody, Length, Level);
375 * Anything else is unrecognized.
377 * Since the entire resource buffer has been already walked and
378 * validated, this is a very serious error indicating that someone
379 * overwrote the buffer.
381 AcpiOsPrintf ("/* Unknown Resource type (%X) */\n", DescriptorId);
388 /*******************************************************************************
390 * FUNCTION: AcpiDmIsResourceDescriptor
392 * PARAMETERS: Op - Buffer Op to be examined
394 * RETURN: TRUE if this Buffer Op contains a valid resource
397 * DESCRIPTION: Walk a byte list to determine if it consists of a valid set
398 * of resource descriptors. Nothing is output.
400 ******************************************************************************/
403 AcpiDmIsResourceDescriptor (
404 ACPI_PARSE_OBJECT *Op)
408 ACPI_PARSE_OBJECT *NextOp;
409 ACPI_NATIVE_UINT CurrentByteOffset;
415 /* This op must be a buffer */
417 if (Op->Common.AmlOpcode != AML_BUFFER_OP)
422 /* Get to the ByteData list */
424 NextOp = Op->Common.Value.Arg;
425 NextOp = NextOp->Common.Next;
431 /* Extract the data pointer and data length */
433 ByteCount = (UINT32) NextOp->Common.Value.Integer;
434 ByteData = NextOp->Named.Data;
436 /* Absolute minimum descriptor is an END_TAG (2 bytes) */
443 /* The list must have a valid 2-byte END_TAG */
445 if (ByteData[ByteCount-2] != (ACPI_RDESC_TYPE_END_TAG | 1))
451 * Walk the byte list. Abort on any invalid descriptor ID or
454 for (CurrentByteOffset = 0; CurrentByteOffset < ByteCount;)
456 CurrentByte = ByteData[CurrentByteOffset];
458 /* Large or small resource? */
460 if (CurrentByte & ACPI_RDESC_TYPE_LARGE)
462 DescriptorId = CurrentByte;
463 Length = (* (ACPI_CAST_PTR (UINT16, (&ByteData[CurrentByteOffset + 1]))));
464 CurrentByteOffset += 3;
468 DescriptorId = (UINT8) (CurrentByte & 0xF8);
469 Length = (ByteData[CurrentByteOffset] & 0x7);
470 CurrentByteOffset += 1;
473 CurrentByteOffset += (ACPI_NATIVE_UINT) Length;
475 /* Determine type of resource */
477 switch (DescriptorId)
480 * "Small" type descriptors
482 case ACPI_RDESC_TYPE_IRQ_FORMAT:
483 case ACPI_RDESC_TYPE_DMA_FORMAT:
484 case ACPI_RDESC_TYPE_START_DEPENDENT:
485 case ACPI_RDESC_TYPE_END_DEPENDENT:
486 case ACPI_RDESC_TYPE_IO_PORT:
487 case ACPI_RDESC_TYPE_FIXED_IO_PORT:
488 case ACPI_RDESC_TYPE_SMALL_VENDOR:
491 * "Large" type descriptors
493 case ACPI_RDESC_TYPE_MEMORY_24:
494 case ACPI_RDESC_TYPE_GENERAL_REGISTER:
495 case ACPI_RDESC_TYPE_LARGE_VENDOR:
496 case ACPI_RDESC_TYPE_MEMORY_32:
497 case ACPI_RDESC_TYPE_FIXED_MEMORY_32:
498 case ACPI_RDESC_TYPE_DWORD_ADDRESS_SPACE:
499 case ACPI_RDESC_TYPE_WORD_ADDRESS_SPACE:
500 case ACPI_RDESC_TYPE_EXTENDED_XRUPT:
501 case ACPI_RDESC_TYPE_QWORD_ADDRESS_SPACE:
503 /* Valid descriptor ID, keep going */
508 case ACPI_RDESC_TYPE_END_TAG:
510 /* We must be at the end of the ByteList */
512 if (CurrentByteOffset != ByteCount)
517 /* All descriptors/lengths valid, this is a valid descriptor */
524 /* Bad descriptor, abort */
530 /* Did not find an END_TAG, something seriously wrong */